Question

A water pipe has an outside diameter of 3.5 cm and a wall thickness of 25/32 cm. What is the inside diameter of the pipe?

Answer 1

Answer:

1.94 cm

Step-by-step explanation:

Inside diameter = 3.5 cm

Wall thickness = 0.78 cm

So, in order to find the inside diameter of the pipe, we can subtract two times of wall thickness from the outer diameter, In mathematical terms, it can be written as:

Inner diameter = outer diameter - 2* (wall thickness)

Putting the values in these equations:

Inner diameter = 3.5 - 2*(0.78)

Inner diameter = 1.94 cm

Answer 2

Answer:

A water pipe has an outside diameter of 3.5 cm and a wall thickness of 25/32 cm.

the inside diameter of the pipe = 31/16 cm   (1.9375 cm)

Step-by-step explanation:

Out side diameter of pipe = 3.5 cm

Wall thickness of pipe  = 25/32 cm

Inside diameter = outside diameter - wall thickness - wall thickness

=> Inside diameter of the pipe =  3.5 - 25/32 - 25/32

= 3.5 - 25/16

= (56 - 25)/16

= 31/16 cm

= 1.9375 cm

inside diameter of the pipe = 31/16 cm   (1.9375 cm)